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https://www.readbyqxmd.com/read/28806832/-dorsal-ligamentoplasty-for-posttraumatic-scapholunate-dissociation
#1
Ralf Bajinski, Joachim Gülke, Martin Mentzel, Florian Sigloch, Moritz Dustmann, Nikolaus Johannes Wachter
Scapholunate dissociation in stages 2 and 3 may lead to posttraumatic damage if left untreated. Different types of treatment have been described, including capsulodesis, tenodesis, and others. The purpose of all procedures is to avoid palmar shift of the distal scaphoid resulting in secondary arthritis (SLAC wrist). This study aimed to evaluate a modified dorsal ligamentoplasty in second- and third-degree scapholunate dissociation in a prospective study design. Furthermore, the study aimed to find out if there is a correlation between radiological and clinical parameters at follow-up and whether or not a SLAC wrist can be avoided...
August 2017: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
https://www.readbyqxmd.com/read/28806776/the-very-low-frequency-band-of-heart-rate-variability-represents-the-slow-recovery-component-after-a-mental-stress-task
#2
Harunobu Usui, Yusuke Nishida
The very low-frequency (VLF) band of heart rate variability (HRV) has different characteristics compared with other HRV components. Here we investigated differences in HRV changes after a mental stress task. After the task, the high-frequency (HF) band and ratio of high- to low-frequency bands (LF/HF) immediately returned to baseline. We evaluated the characteristics of VLF band changes after a mental stress task. We hypothesized that the VLF band decreases during the Stroop color word task and there would be a delayed recovery for 2 h after the task (i...
2017: PloS One
https://www.readbyqxmd.com/read/28806768/design-and-fabrication-of-a-realistic-anthropomorphic-heterogeneous-head-phantom-for-mr-purposes
#3
Sossena Wood, Narayanan Krishnamurthy, Tales Santini, Shailesh Raval, Nadim Farhat, John Andy Holmes, Tamer S Ibrahim
OBJECTIVE: The purpose of this study is to design an anthropomorphic heterogeneous head phantom that can be used for MRI and other electromagnetic applications. MATERIALS AND METHODS: An eight compartment, physical anthropomorphic head phantom was developed from a 3T MRI dataset of a healthy male. The designed phantom was successfully built and preliminarily evaluated through an application that involves electromagnetic-tissue interactions: MRI (due to it being an available resource)...
2017: PloS One
https://www.readbyqxmd.com/read/28806760/endothelial-activation-and-dysfunction-in-severe-fever-with-thrombocytopenia-syndrome
#4
Xiao-Kun Li, Zhen-Dong Yang, Juan Du, Bo Xing, Ning Cui, Pan-He Zhang, Hao Li, Xiao-Ai Zhang, Qing-Bin Lu, Wei Liu
BACKGROUND: Pathogenesis of severe fever with thrombocytopenia syndrome (SFTS) has not been well described yet. Recent studies indicate that SFTSV could replicate in endothelial cells. Here we performed a case-control study to determine whether endothelial activation/dysfunction occurred in SFTSV infection and to identify the biomarkers reflecting endothelial dysfunction. METHODOLOGY/PRINCIPAL FINDINGS: In a case-control study of 134 SFTS patients and 68 healthy controls, serum levels of plasminogen activator inhibitor 1, tissue plasminogen activator, P-selectin, platelet endothelial cell adhesion molecular, CD40 ligand, E-selectin, vascular endothelial growth factor A, serum amyloid antigen 1 (SAA-1) and vascular cell adhesion molecular 1 were significantly enhanced in the patients than the controls (all P<0...
August 14, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28806742/dissociating-maternal-responses-to-sad-and-happy-facial-expressions-of-their-own-child-an-fmri-study
#5
Dorothea Kluczniok, Catherine Hindi Attar, Jenny Stein, Sina Poppinga, Thomas Fydrich, Charlotte Jaite, Viola Kappel, Romuald Brunner, Sabine C Herpertz, Katja Boedeker, Felix Bermpohl
BACKGROUND: Maternal sensitive behavior depends on recognizing one's own child's affective states. The present study investigated distinct and overlapping neural responses of mothers to sad and happy facial expressions of their own child (in comparison to facial expressions of an unfamiliar child). METHODS: We used functional MRI to measure dissociable and overlapping activation patterns in 27 healthy mothers in response to happy, neutral and sad facial expressions of their own school-aged child and a gender- and age-matched unfamiliar child...
2017: PloS One
https://www.readbyqxmd.com/read/28806736/unravelling-the-interplay-of-sphingolipids-and-tgf-%C3%AE-signaling-in-the-human-corneal-stroma
#6
Sarah E Nicholas, Tyler G Rowsey, Shrestha Priyadarsini, Nawajes A Mandal, Dimitrios Karamichos
PURPOSE: To delineate the role of Sphingolipids (SPLs) in the human cornea and their cross-talks with transforming growth factor beta (TGF-β) in order to develop novel, non-invasive therapies. METHODS: Human corneal fibroblasts (HCFs) were harvested from healthy donors, stimulated with Vitamin C to promote extracellular matrix assembly, treated with exogenous sphingosine-1-phosphate (S1P) or sphingosine kinase inhibitor 2 (SPHK I2) and isolated after 4 weeks for further analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28806729/erk2-and-jnk1-contribute-to-tnf-%C3%AE-induced-il-8-expression-in-synovial-fibroblasts
#7
Shinichi Namba, Rei Nakano, Taku Kitanaka, Nanako Kitanaka, Tomohiro Nakayama, Hiroshi Sugiya
Tumor necrosis factor α (TNF-α) induces the expression and secretion of interleukin 8 (IL-8), which contributes to synovitis in rheumatoid arthritis (RA). To elucidate the mechanism of the onset of RA, we used synovial fibroblasts without autoimmune inflammatory diseases and investigated MAPK signaling pathways in TNF-α-induced IL-8 expression. Synovial fibroblasts isolated from healthy dogs were characterized by flow cytometry, which were positive for the fibroblast markers CD29, CD44, and CD90 but negative for the hematopoietic cell markers CD14, CD34, CD45, and HLA-DR...
2017: PloS One
https://www.readbyqxmd.com/read/28806721/the-effect-of-visual-perturbation-upon-femoral-acceleration-during-the-single-and-bilateral-squat
#8
R Barry Dale, Ravi P Gollapalli, Taylor Price, Katie Megahee, Morgan Duncan, Nick Tolstick, Luke Ford
OBJECTIVES: Record femoral accelerations using a smartphone accelerometer attached to the distal thigh during single-legged (SLS) and bilateral squats, and each squat condition occurred under two visual conditions: 1) normal vision and 2) visual perturbation with stroboscopic glasses. DESIGN: Repeated-measures cross-over with counter-balanced order for four total conditions. SETTING: Laboratory. PARTICIPANTS: 22 females and 16 males without lower extremity pathologies...
June 20, 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28806711/the-potential-of-an-automated-system-to-identify-the-upper-limb-component-of-a-controlled-sitting-posture
#9
María B Sánchez, Ian Loram, John Darby, Paul Holmes, Penelope B Butler
Full trunk control in sitting is demonstrated only when the head-trunk are aligned and upper limbs remain free of contact from mechanical support. These components represent a Controlled Kinetic Chain and can be evaluated in people with neuromotor disability using the Segmental Assessment of Trunk Control (SATCo) when a therapist provides manual trunk support at different segmental levels. However, the SATCo, as with other clinical assessments of control, is subjective. The SATCo was translated to objective rules relating the position of the hands and elbows to the head-trunk and then tested to determine the extent to which this automated objective method replicated the clinical judgement...
August 8, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28806709/in-vivo-kinematics-of-early-stage-osteoarthritic-knees-during-pivot-and-squat-activities
#10
Keisuke Matsuki, Kei O Matsuki, Tomonori Kenmoku, Satoshi Yamaguchi, Takahisa Sasho, Scott A Banks
Kinematic changes have been shown to accompany severe knee osteoarthritis, but no studies have analyzed early-stage osteoarthritic knee kinematics in the transverse plane during functional activities. The purpose of this study was to analyze kinematics of early-stage osteoarthritic knees using model registration techniques. Fifteen early-stage osteoarthritic knees from eight females with a mean age of 52 years old (range, 43-57years old) were involved in this study. A radiologist confirmed with plain radiographs that knees had Kellgren-Lawrence grade-1 or -2 arthritic changes...
August 4, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28806666/doxorubicin-loaded-environmentally-friendly-carbon-dots-as-a-novel-drug-delivery-system-for-nucleus-targeted-cancer-therapy
#11
Yifang Yuan, Bin Guo, Liying Hao, Na Liu, Yunfeng Lin, Wushuang Guo, Xiaoguang Li, Bin Gu
Chemotherapy is widely applied against various kinds of carcinoma. Generally, chemotherapeutic agents, such as Doxorubicin (DOX), Paclitaxel (PTX), 5-Fluorouracil (5-FU), Methotrexate (MTX), and Vinblastine (VLB) are combined with a view to maximizing their efficacy. Unfortunately, chemotherapeutics are indiscriminate and also kill normal healthy cells, resulting in serious side effects. This non-productive and destructive distribution of chemotherapeutics is regarded as one of the largest problems associated with chemotherapy...
July 10, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28806642/circulating-follicular-helper-t-cells-presented-distinctively-different-responses-toward-bacterial-antigens-in-primary-biliary-cholangitis
#12
Zun-Qiang Zhou, Da-Nian Tong, Jiao Guan, Mei-Fang Li, Qi-Ming Feng, Min-Jie Zhou, Zheng-Yun Zhang
Primary biliary cholangitis (PBC) is a chronic and progressive cholestatic liver disease with unknown causes. The initiation of PBC is associated with bacterial infections and abnormal immune correlates, such as the presence of self-reactive anti-mitochondrial antibodies and shifted balance of T cell subsets. In particular, the CD4(+)CXCR5(+) follicular helper T (Tfh) cells are highly activated in PBC patients and are significantly associated with PBC severity, but the underlying reasons are unknown. In this study, we found that the circulating CD4(+)CXCR5(+) T cells were enriched with the interferon (IFN)-γ-secreting Th1-subtype and the interleukin (IL)-17-secreting Th17-subtype, but not the IL-4-secreting Th2 subtype...
August 11, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28806614/altered-interaction-with-environmental-reinforcers-in-major-depressive-disorder-relationship-to-anhedonia
#13
Joanna E Szczepanik, Maura L Furey, Allison C Nugent, Ioline D Henter, Carlos A Zarate, Carl W Lejuez
Anhedonia-defined as loss of interest or pleasure-is one of two core symptoms of major depressive disorder (MDD). Anhedonia may involve decreased enjoyment of potentially rewarding activities and decreased motivation to engage in such activities. Increased engagement with reinforcers-activities with the potential to be positive experiences-is a frequent target of cognitive-behavioral therapies. Nevertheless, how environmental reinforcers are perceived, and how decisions to approach or avoid them are made by individuals with MDD, is largely unknown...
August 3, 2017: Behaviour Research and Therapy
https://www.readbyqxmd.com/read/28806592/validation-of-simplified-centre-of-mass-models-during-gait-in-individuals-with-chronic-stroke
#14
Andrew H Huntley, Alison Schinkel-Ivy, Anthony Aqui, Avril Mansfield
BACKGROUND: The feasibility of using a multiple segment (full-body) kinematic model in clinical gait assessment is difficult when considering obstacles such as time and cost constraints. While simplified gait models have been explored in healthy individuals, no such work to date has been conducted in a stroke population. The aim of this study was to quantify the errors of simplified kinematic models for chronic stroke gait assessment. METHODS: Sixteen individuals with chronic stroke (>6months), outfitted with full body kinematic markers, performed a series of gait trials...
July 31, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28806552/exposure-of-engineered-nanoparticles-to-alexandrium-tamarense-dinophyceae-healthy-impacts-of-nanoparticles-via-toxin-producing-dinoflagellate
#15
Manlu Li, Daoyi Chen, Yang Liu, Chia Ying Chuang, Fanzhou Kong, Paul J Harrison, Xiaoshan Zhu, Yuelu Jiang
Human activities can enhance the frequency, intensity and occurrence of harmful algal blooms (HABs). Engineered nanoparticles (ENPs), contained in many materials, will inevitably enter coastal waters and thus cause unpredictable impacts on aquatic organisms. However, knowledge of the influence of ENPs on HAB species is still lacking. In this study, we examined the effects of titanium dioxide nanoparticles (nTiO2), zinc oxide nanoparticles (nZnO) and aluminum oxide nanoparticles (nAl2O3) on physiological changes and paralytic shellfish poisoning toxins (PSTs) production of Alexandrium tamarense...
August 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28806532/the-impact-of-an-acute-oral-phosphate-load-on-endothelium-dependent-and-independent-brachial-artery-vasodilation-in-healthy-males
#16
Brendan M Levac, Michael A Adams, Kyra E Pyke
Serum phosphate levels are associated with cardiovascular morbidity and mortality in the general population and endothelial dysfunction may be mechanistically involved. The purpose of this study was to investigate the effects of acute phosphate supplementation on endothelial-dependent (Flow mediated dilation (FMD)) and -independent (Glyceryl trinitrate (GTN)) vasodilation in young, healthy males. 17 healthy male participants (23±3 years old) were exposed to an oral load of phosphate (PHOS; (liquid supplement containing 1200 mg of phosphorous) and placebo (PLAC) over two experimental days...
August 14, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28806528/surface-adaptive-gold-nanoparticles-with-effective-adherence-and-enhanced-photothermal-ablation-of-methicillin-resistant-staphylococcus-aureus-biofilm
#17
Dengfeng Hu, Huan Li, Bailiang Wang, Zi Ye, Wenxi Lei, Fan Jia, Qiao Jin, Ke-Feng Ren, Jian Ji
Biofilms which contribute to the persistent bacterial infections pose serious threats to global public health, mainly due to their resistance to antibiotics penetration and escaping innate immune attacks by phagocytes. Here, we report a kind of surface-adaptive gold nanoparticles (AuNPs) exhibiting (1) self-adaptive target to the acidic microenvironment of biofilm, (2) enhanced photothermal ablation of methicillin-resistant Staphylococcus aureus (MRSA) biofilm under near-infrared (NIR) light irradiation and (3) no damage to the healthy tissues around biofilm...
August 14, 2017: ACS Nano
https://www.readbyqxmd.com/read/28806487/gut-microbiome-response-to-short-term-dietary-interventions-in-reactive-hypoglycemia-subjects
#18
Sara Quercia, Silvia Turroni, Jessica Fiori, Matteo Soverini, Simone Rampelli, Elena Biagi, Andrea Castagnetti, Clarissa Consolandi, Marco Severgnini, Mario Pianesi, Francesco Fallucca, Paolo Pozzilli, Patrizia Brigidi, Marco Candela
BACKGROUND: Reactive hypoglycemia (RH) is a metabolic disorder that provokes severe hypoglycemic episodes after meal. Over recent years, the gut microbiota (GM) has been recognized as potential target for the control of metabolic diseases, and the possibility to correct GM dysbioses through diet, favoring the recovery of metabolic homeostasis, has been considered. METHODS: We investigate the impact of two short-term (3-day) nutritional interventions, based on the macrobiotic Ma-Pi 2 diet and a control Mediterranean diet, on the structure and functionality of the GM in 12 patients affected by RH...
August 14, 2017: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/28806472/effects-of-clarithromycin-on-the-pharmacokinetics-of-evogliptin-in-healthy-volunteers
#19
E S Oh, C Choi, C O Kim, K H Kim, Y N Kim, S J Kim, M S Park
WHAT IS KNOWN AND OBJECTIVE: Evogliptin (DA-1229), a novel dipeptidyl peptidase (DPP)-4 inhibitor with high potency and selectivity, was approved in Korea for the treatment of type 2 diabetes. Preclinical studies suggest that it is metabolized by cytochrome (CYP) P450 isozymes. Based on these findings, a clinical study was designed to investigate the pharmacokinetic (PK) interaction of evogliptin with a CYP inhibitor, clarithromycin. METHODS: An open-label, two-phase, crossover study was conducted with 12 healthy subjects...
August 14, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28806445/use-of-laboratory-markers-in-addition-to-symptoms-for-diagnosis-of-inflammatory-bowel-disease-in-children-a-meta-analysis-of-individual-patient-data
#20
Gea A Holtman, Yvonne Lisman-van Leeuwen, Andrew S Day, Ulrika L Fagerberg, Paul Henderson, Stevan T Leach, Gøri Perminow, David Mack, Patrick F van Rheenen, Els van de Vijver, David C Wilson, Johannes B Reitsma, Marjolein Y Berger
Importance: Blood markers and fecal calprotectin are used in the diagnostic workup for inflammatory bowel disease (IBD) in pediatric patients. Any added diagnostic value of these laboratory markers remains unclear. Objective: To determine whether adding laboratory markers to evaluation of signs and symptoms improves accuracy when diagnosing pediatric IBD. Data Sources: A literature search of MEDLINE and EMBASE from inception through September 26, 2016...
August 14, 2017: JAMA Pediatrics
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